祁连山牧区四季草地合理利用技术研究  

Technical research on rational utilization of fourseasons pastures in Qilian Mountain

作　　者：李成[1] 吴建平[2] 张利平[2] 宫旭胤[2,3] 刘婷[2] 

机构地区：[1]甘肃农业大学草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续发展研究中心,甘肃兰州730070 [2]甘肃农业大学动物与科学技术学院,甘肃兰州730070 [3]甘肃省农业科学院畜草与绿色农业研究所,甘肃兰州730070

出　　处：《草原与草坪》2015年第6期89-93,共5页Grassland and Turf

基　　金：牧区极端气候条件牛羊应急在专用饲料的开发与示范(201303062);祁连山牧区草地畜牧业生产体系优化模式研究(1104WCGA191);绒毛用羊产业技术体系放牧生态岗位科学家(CARS-40-09B);ACIAR项目(AS2/2001/094);北方荒漠草原家畜营养平衡技术研究(200903060)资助

摘　　要：通过对祁连山牧区四季草地的合理利用,在降低夏草场载畜量的同时合理利用闲置的冬草场,以实现四季牧场的季节性草畜平衡。试验将夏季部分细毛羊羔羊转移至冬草场,后监测转场后各草场的情况,以及羔羊和母羊体重指标变化状况,并计算不同草场载畜量及牧户经济效益。结果表明:降低夏草场载畜量后,可分别提高夏草场和冬草场鲜草产量18.5和3.5kg/hm^2,由于试验组羔羊转移至冬草场后被强制断奶,试验组母羊30d的平均日增重达到215g,极显著高于对照组母羊(P<0.01);同时提高牧户纯收入940元。For realiazing the seasonal feed balance on four seasons pasture,the paper studied the appraoch of winter pasture use in summer through reducing stock rate on summer pasture.The studying monitored the changes of vegetation in summer and winter pastures,body mass of lamb and ewe after moved lambs in summer pasture to winter pasture.The results showed that the freash biomass in summer and winter pastures were increased by 18.5kg/ha and 3.5kg/ha,respectively.Because the lambs in experimental group were weaned by force after they were transferred to the winter pastures,the averaged-daily-gain of the ewes was 215 g in a month and it was significantly higher than that of the contrast ewes.The net income of herders were increased by 940 RMB.

关 键 词：祁连山 四季牧场 合理利用 载畜量 

分 类 号：S812[农业科学—草业科学]